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Comparing libev/ev.c (file contents):
Revision 1.465 by root, Tue Mar 25 17:44:13 2014 UTC vs.
Revision 1.487 by root, Mon Oct 29 00:00:21 2018 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2018 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
256# else 258# else
257# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
258# endif 260# endif
259#endif 261#endif
260 262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
269# endif
270#endif
271
261#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 274# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 275# else
265# define EV_USE_MONOTONIC 0 276# define EV_USE_MONOTONIC 0
354 365
355#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 368#endif
358 369
359#ifdef ANDROID 370#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 372# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 494/* ECB.H BEGIN */
484/* 495/*
485 * libecb - http://software.schmorp.de/pkg/libecb 496 * libecb - http://software.schmorp.de/pkg/libecb
486 * 497 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 499 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 500 * All rights reserved.
490 * 501 *
491 * Redistribution and use in source and binary forms, with or without modifica- 502 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 503 * tion, are permitted provided that the following conditions are met:
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 517 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 518 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 519 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 520 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE. 521 * OF THE POSSIBILITY OF SUCH DAMAGE.
522 *
523 * Alternatively, the contents of this file may be used under the terms of
524 * the GNU General Public License ("GPL") version 2 or any later version,
525 * in which case the provisions of the GPL are applicable instead of
526 * the above. If you wish to allow the use of your version of this file
527 * only under the terms of the GPL and not to allow others to use your
528 * version of this file under the BSD license, indicate your decision
529 * by deleting the provisions above and replace them with the notice
530 * and other provisions required by the GPL. If you do not delete the
531 * provisions above, a recipient may use your version of this file under
532 * either the BSD or the GPL.
511 */ 533 */
512 534
513#ifndef ECB_H 535#ifndef ECB_H
514#define ECB_H 536#define ECB_H
515 537
516/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003 539#define ECB_VERSION 0x00010005
518 540
519#ifdef _WIN32 541#ifdef _WIN32
520 typedef signed char int8_t; 542 typedef signed char int8_t;
521 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
522 typedef signed short int16_t; 544 typedef signed short int16_t;
539 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
541 #endif 563 #endif
542#else 564#else
543 #include <inttypes.h> 565 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
546 #else 568 #else
547 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
548 #endif 570 #endif
549#endif 571#endif
550 572
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575
551/* work around x32 idiocy by defining proper macros */ 576/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 578 #if _ILP32
554 #define ECB_AMD64_X32 1 579 #define ECB_AMD64_X32 1
555 #else 580 #else
556 #define ECB_AMD64 1 581 #define ECB_AMD64 1
557 #endif 582 #endif
562 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 588 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have 589 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place. 590 * an issue with that they should have done it right in the first place.
566 */ 591 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
570 #else 594#else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif 596#endif
597
598#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
599
600#if __clang__ && defined __has_builtin
601 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
602#else
603 #define ECB_CLANG_BUILTIN(x) 0
604#endif
605
606#if __clang__ && defined __has_extension
607 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
608#else
609 #define ECB_CLANG_EXTENSION(x) 0
573#endif 610#endif
574 611
575#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
576#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
577 614
605 #define ECB_NO_SMP 1 642 #define ECB_NO_SMP 1
606#endif 643#endif
607 644
608#if ECB_NO_SMP 645#if ECB_NO_SMP
609 #define ECB_MEMORY_FENCE do { } while (0) 646 #define ECB_MEMORY_FENCE do { } while (0)
647#endif
648
649/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
650#if __xlC__ && ECB_CPP
651 #include <builtins.h>
652#endif
653
654#if 1400 <= _MSC_VER
655 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
610#endif 656#endif
611 657
612#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
613 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 659 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
614 #if __i386 || __i386__ 660 #if __i386 || __i386__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
616 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 662 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
617 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 663 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
618 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 664 #elif ECB_GCC_AMD64
619 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
620 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
621 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
622 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670 #elif defined __ARM_ARCH_2__ \
671 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
673 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
674 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
675 || defined __ARM_ARCH_5TEJ__
676 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
624 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 677 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
625 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 678 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
679 || defined __ARM_ARCH_6T2__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
627 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 681 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
628 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 682 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
629 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
630 #elif __aarch64__ 684 #elif __aarch64__
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
632 #elif (__sparc || __sparc__) && !__sparcv8 686 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
634 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 688 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
635 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 689 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
636 #elif defined __s390__ || defined __s390x__ 690 #elif defined __s390__ || defined __s390x__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
661 /* see comment below (stdatomic.h) about the C11 memory model. */ 715 /* see comment below (stdatomic.h) about the C11 memory model. */
662 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 716 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
663 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 717 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
664 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 718 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
665 719
666 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 720 #elif ECB_CLANG_EXTENSION(c_atomic)
667 * without risking compile time errors with other compilers. We *could*
668 * define our own ecb_clang_has_feature, but I just can't be bothered to work
669 * around this shit time and again.
670 * #elif defined __clang && __has_feature (cxx_atomic)
671 * // see comment below (stdatomic.h) about the C11 memory model. 721 /* see comment below (stdatomic.h) about the C11 memory model. */
672 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 722 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
673 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 723 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
674 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 724 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
675 */
676 725
677 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 726 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
678 #define ECB_MEMORY_FENCE __sync_synchronize () 727 #define ECB_MEMORY_FENCE __sync_synchronize ()
679 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 728 #elif _MSC_VER >= 1500 /* VC++ 2008 */
680 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 729 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
743 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 792 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
744#endif 793#endif
745 794
746/*****************************************************************************/ 795/*****************************************************************************/
747 796
748#if __cplusplus 797#if ECB_CPP
749 #define ecb_inline static inline 798 #define ecb_inline static inline
750#elif ECB_GCC_VERSION(2,5) 799#elif ECB_GCC_VERSION(2,5)
751 #define ecb_inline static __inline__ 800 #define ecb_inline static __inline__
752#elif ECB_C99 801#elif ECB_C99
753 #define ecb_inline static inline 802 #define ecb_inline static inline
767 816
768#define ECB_CONCAT_(a, b) a ## b 817#define ECB_CONCAT_(a, b) a ## b
769#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 818#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
770#define ECB_STRINGIFY_(a) # a 819#define ECB_STRINGIFY_(a) # a
771#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 820#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
821#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
772 822
773#define ecb_function_ ecb_inline 823#define ecb_function_ ecb_inline
774 824
775#if ECB_GCC_VERSION(3,1) 825#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
776 #define ecb_attribute(attrlist) __attribute__(attrlist) 826 #define ecb_attribute(attrlist) __attribute__ (attrlist)
827#else
828 #define ecb_attribute(attrlist)
829#endif
830
831#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
777 #define ecb_is_constant(expr) __builtin_constant_p (expr) 832 #define ecb_is_constant(expr) __builtin_constant_p (expr)
778 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
779 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
780#else 833#else
781 #define ecb_attribute(attrlist)
782
783 /* possible C11 impl for integral types 834 /* possible C11 impl for integral types
784 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 835 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
785 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 836 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
786 837
787 #define ecb_is_constant(expr) 0 838 #define ecb_is_constant(expr) 0
839#endif
840
841#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
842 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
843#else
788 #define ecb_expect(expr,value) (expr) 844 #define ecb_expect(expr,value) (expr)
845#endif
846
847#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
848 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
849#else
789 #define ecb_prefetch(addr,rw,locality) 850 #define ecb_prefetch(addr,rw,locality)
790#endif 851#endif
791 852
792/* no emulation for ecb_decltype */ 853/* no emulation for ecb_decltype */
793#if ECB_GCC_VERSION(4,5) 854#if ECB_CPP11
855 // older implementations might have problems with decltype(x)::type, work around it
856 template<class T> struct ecb_decltype_t { typedef T type; };
794 #define ecb_decltype(x) __decltype(x) 857 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
795#elif ECB_GCC_VERSION(3,0) 858#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
796 #define ecb_decltype(x) __typeof(x) 859 #define ecb_decltype(x) __typeof__ (x)
797#endif 860#endif
798 861
862#if _MSC_VER >= 1300
863 #define ecb_deprecated __declspec (deprecated)
864#else
865 #define ecb_deprecated ecb_attribute ((__deprecated__))
866#endif
867
868#if _MSC_VER >= 1500
869 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
870#elif ECB_GCC_VERSION(4,5)
871 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
872#else
873 #define ecb_deprecated_message(msg) ecb_deprecated
874#endif
875
876#if _MSC_VER >= 1400
877 #define ecb_noinline __declspec (noinline)
878#else
799#define ecb_noinline ecb_attribute ((__noinline__)) 879 #define ecb_noinline ecb_attribute ((__noinline__))
880#endif
881
800#define ecb_unused ecb_attribute ((__unused__)) 882#define ecb_unused ecb_attribute ((__unused__))
801#define ecb_const ecb_attribute ((__const__)) 883#define ecb_const ecb_attribute ((__const__))
802#define ecb_pure ecb_attribute ((__pure__)) 884#define ecb_pure ecb_attribute ((__pure__))
803 885
804#if ECB_C11 886#if ECB_C11 || __IBMC_NORETURN
887 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
805 #define ecb_noreturn _Noreturn 888 #define ecb_noreturn _Noreturn
889#elif ECB_CPP11
890 #define ecb_noreturn [[noreturn]]
891#elif _MSC_VER >= 1200
892 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
893 #define ecb_noreturn __declspec (noreturn)
806#else 894#else
807 #define ecb_noreturn ecb_attribute ((__noreturn__)) 895 #define ecb_noreturn ecb_attribute ((__noreturn__))
808#endif 896#endif
809 897
810#if ECB_GCC_VERSION(4,3) 898#if ECB_GCC_VERSION(4,3)
825/* for compatibility to the rest of the world */ 913/* for compatibility to the rest of the world */
826#define ecb_likely(expr) ecb_expect_true (expr) 914#define ecb_likely(expr) ecb_expect_true (expr)
827#define ecb_unlikely(expr) ecb_expect_false (expr) 915#define ecb_unlikely(expr) ecb_expect_false (expr)
828 916
829/* count trailing zero bits and count # of one bits */ 917/* count trailing zero bits and count # of one bits */
830#if ECB_GCC_VERSION(3,4) 918#if ECB_GCC_VERSION(3,4) \
919 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
920 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
921 && ECB_CLANG_BUILTIN(__builtin_popcount))
831 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 922 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
832 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 923 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
833 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 924 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
834 #define ecb_ctz32(x) __builtin_ctz (x) 925 #define ecb_ctz32(x) __builtin_ctz (x)
835 #define ecb_ctz64(x) __builtin_ctzll (x) 926 #define ecb_ctz64(x) __builtin_ctzll (x)
836 #define ecb_popcount32(x) __builtin_popcount (x) 927 #define ecb_popcount32(x) __builtin_popcount (x)
837 /* no popcountll */ 928 /* no popcountll */
838#else 929#else
839 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 930 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
840 ecb_function_ int 931 ecb_function_ ecb_const int
841 ecb_ctz32 (uint32_t x) 932 ecb_ctz32 (uint32_t x)
842 { 933 {
934#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
935 unsigned long r;
936 _BitScanForward (&r, x);
937 return (int)r;
938#else
843 int r = 0; 939 int r = 0;
844 940
845 x &= ~x + 1; /* this isolates the lowest bit */ 941 x &= ~x + 1; /* this isolates the lowest bit */
846 942
847#if ECB_branchless_on_i386 943#if ECB_branchless_on_i386
857 if (x & 0xff00ff00) r += 8; 953 if (x & 0xff00ff00) r += 8;
858 if (x & 0xffff0000) r += 16; 954 if (x & 0xffff0000) r += 16;
859#endif 955#endif
860 956
861 return r; 957 return r;
958#endif
862 } 959 }
863 960
864 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
865 ecb_function_ int 962 ecb_function_ ecb_const int
866 ecb_ctz64 (uint64_t x) 963 ecb_ctz64 (uint64_t x)
867 { 964 {
965#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
966 unsigned long r;
967 _BitScanForward64 (&r, x);
968 return (int)r;
969#else
868 int shift = x & 0xffffffffU ? 0 : 32; 970 int shift = x & 0xffffffff ? 0 : 32;
869 return ecb_ctz32 (x >> shift) + shift; 971 return ecb_ctz32 (x >> shift) + shift;
972#endif
870 } 973 }
871 974
872 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
873 ecb_function_ int 976 ecb_function_ ecb_const int
874 ecb_popcount32 (uint32_t x) 977 ecb_popcount32 (uint32_t x)
875 { 978 {
876 x -= (x >> 1) & 0x55555555; 979 x -= (x >> 1) & 0x55555555;
877 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 980 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
878 x = ((x >> 4) + x) & 0x0f0f0f0f; 981 x = ((x >> 4) + x) & 0x0f0f0f0f;
879 x *= 0x01010101; 982 x *= 0x01010101;
880 983
881 return x >> 24; 984 return x >> 24;
882 } 985 }
883 986
884 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 987 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
885 ecb_function_ int ecb_ld32 (uint32_t x) 988 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
886 { 989 {
990#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
991 unsigned long r;
992 _BitScanReverse (&r, x);
993 return (int)r;
994#else
887 int r = 0; 995 int r = 0;
888 996
889 if (x >> 16) { x >>= 16; r += 16; } 997 if (x >> 16) { x >>= 16; r += 16; }
890 if (x >> 8) { x >>= 8; r += 8; } 998 if (x >> 8) { x >>= 8; r += 8; }
891 if (x >> 4) { x >>= 4; r += 4; } 999 if (x >> 4) { x >>= 4; r += 4; }
892 if (x >> 2) { x >>= 2; r += 2; } 1000 if (x >> 2) { x >>= 2; r += 2; }
893 if (x >> 1) { r += 1; } 1001 if (x >> 1) { r += 1; }
894 1002
895 return r; 1003 return r;
1004#endif
896 } 1005 }
897 1006
898 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1007 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
899 ecb_function_ int ecb_ld64 (uint64_t x) 1008 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
900 { 1009 {
1010#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1011 unsigned long r;
1012 _BitScanReverse64 (&r, x);
1013 return (int)r;
1014#else
901 int r = 0; 1015 int r = 0;
902 1016
903 if (x >> 32) { x >>= 32; r += 32; } 1017 if (x >> 32) { x >>= 32; r += 32; }
904 1018
905 return r + ecb_ld32 (x); 1019 return r + ecb_ld32 (x);
1020#endif
906 } 1021 }
907#endif 1022#endif
908 1023
909ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1024ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
910ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1025ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
911ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1026ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
912ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1027ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
913 1028
914ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1029ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
915ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1030ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
916{ 1031{
917 return ( (x * 0x0802U & 0x22110U) 1032 return ( (x * 0x0802U & 0x22110U)
918 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1033 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
919} 1034}
920 1035
921ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1036ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
922ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1037ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
923{ 1038{
924 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1039 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
925 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1040 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
926 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1041 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
927 x = ( x >> 8 ) | ( x << 8); 1042 x = ( x >> 8 ) | ( x << 8);
928 1043
929 return x; 1044 return x;
930} 1045}
931 1046
932ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1047ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
933ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1048ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
934{ 1049{
935 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1050 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
936 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1051 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
937 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
938 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1053 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
941 return x; 1056 return x;
942} 1057}
943 1058
944/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1059/* popcount64 is only available on 64 bit cpus as gcc builtin */
945/* so for this version we are lazy */ 1060/* so for this version we are lazy */
946ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1061ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
947ecb_function_ int 1062ecb_function_ ecb_const int
948ecb_popcount64 (uint64_t x) 1063ecb_popcount64 (uint64_t x)
949{ 1064{
950 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1065 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
951} 1066}
952 1067
953ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1068ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
954ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1069ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
955ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1070ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
956ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1071ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
957ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1072ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
958ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1073ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
959ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1074ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
960ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1075ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
961 1076
962ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1077ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
963ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1078ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
964ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1079ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
965ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1080ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
966ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1081ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
967ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1082ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
968ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1083ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
969ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1084ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
970 1085
971#if ECB_GCC_VERSION(4,3) 1086#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1087 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1088 #define ecb_bswap16(x) __builtin_bswap16 (x)
1089 #else
972 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1090 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1091 #endif
973 #define ecb_bswap32(x) __builtin_bswap32 (x) 1092 #define ecb_bswap32(x) __builtin_bswap32 (x)
974 #define ecb_bswap64(x) __builtin_bswap64 (x) 1093 #define ecb_bswap64(x) __builtin_bswap64 (x)
1094#elif _MSC_VER
1095 #include <stdlib.h>
1096 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1097 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1098 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
975#else 1099#else
976 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1100 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
977 ecb_function_ uint16_t 1101 ecb_function_ ecb_const uint16_t
978 ecb_bswap16 (uint16_t x) 1102 ecb_bswap16 (uint16_t x)
979 { 1103 {
980 return ecb_rotl16 (x, 8); 1104 return ecb_rotl16 (x, 8);
981 } 1105 }
982 1106
983 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1107 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
984 ecb_function_ uint32_t 1108 ecb_function_ ecb_const uint32_t
985 ecb_bswap32 (uint32_t x) 1109 ecb_bswap32 (uint32_t x)
986 { 1110 {
987 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1111 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
988 } 1112 }
989 1113
990 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1114 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
991 ecb_function_ uint64_t 1115 ecb_function_ ecb_const uint64_t
992 ecb_bswap64 (uint64_t x) 1116 ecb_bswap64 (uint64_t x)
993 { 1117 {
994 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1118 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
995 } 1119 }
996#endif 1120#endif
997 1121
998#if ECB_GCC_VERSION(4,5) 1122#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
999 #define ecb_unreachable() __builtin_unreachable () 1123 #define ecb_unreachable() __builtin_unreachable ()
1000#else 1124#else
1001 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1125 /* this seems to work fine, but gcc always emits a warning for it :/ */
1002 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1126 ecb_inline ecb_noreturn void ecb_unreachable (void);
1003 ecb_inline void ecb_unreachable (void) { } 1127 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1004#endif 1128#endif
1005 1129
1006/* try to tell the compiler that some condition is definitely true */ 1130/* try to tell the compiler that some condition is definitely true */
1007#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1131#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1008 1132
1009ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1133ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1010ecb_inline unsigned char 1134ecb_inline ecb_const uint32_t
1011ecb_byteorder_helper (void) 1135ecb_byteorder_helper (void)
1012{ 1136{
1013 /* the union code still generates code under pressure in gcc, */ 1137 /* the union code still generates code under pressure in gcc, */
1014 /* but less than using pointers, and always seems to */ 1138 /* but less than using pointers, and always seems to */
1015 /* successfully return a constant. */ 1139 /* successfully return a constant. */
1016 /* the reason why we have this horrible preprocessor mess */ 1140 /* the reason why we have this horrible preprocessor mess */
1017 /* is to avoid it in all cases, at least on common architectures */ 1141 /* is to avoid it in all cases, at least on common architectures */
1018 /* or when using a recent enough gcc version (>= 4.6) */ 1142 /* or when using a recent enough gcc version (>= 4.6) */
1019#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1020 return 0x44;
1021#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1143#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1144 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1145 #define ECB_LITTLE_ENDIAN 1
1022 return 0x44; 1146 return 0x44332211;
1023#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1147#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1148 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1149 #define ECB_BIG_ENDIAN 1
1024 return 0x11; 1150 return 0x11223344;
1025#else 1151#else
1026 union 1152 union
1027 { 1153 {
1154 uint8_t c[4];
1028 uint32_t i; 1155 uint32_t u;
1029 uint8_t c;
1030 } u = { 0x11223344 }; 1156 } u = { 0x11, 0x22, 0x33, 0x44 };
1031 return u.c; 1157 return u.u;
1032#endif 1158#endif
1033} 1159}
1034 1160
1035ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1161ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1036ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1162ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1037ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1163ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1038ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1164ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1039 1165
1040#if ECB_GCC_VERSION(3,0) || ECB_C99 1166#if ECB_GCC_VERSION(3,0) || ECB_C99
1041 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1167 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1042#else 1168#else
1043 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1169 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1044#endif 1170#endif
1045 1171
1046#if __cplusplus 1172#if ECB_CPP
1047 template<typename T> 1173 template<typename T>
1048 static inline T ecb_div_rd (T val, T div) 1174 static inline T ecb_div_rd (T val, T div)
1049 { 1175 {
1050 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1176 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1051 } 1177 }
1068 } 1194 }
1069#else 1195#else
1070 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1071#endif 1197#endif
1072 1198
1199ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200ecb_function_ ecb_const uint32_t
1201ecb_binary16_to_binary32 (uint32_t x)
1202{
1203 unsigned int s = (x & 0x8000) << (31 - 15);
1204 int e = (x >> 10) & 0x001f;
1205 unsigned int m = x & 0x03ff;
1206
1207 if (ecb_expect_false (e == 31))
1208 /* infinity or NaN */
1209 e = 255 - (127 - 15);
1210 else if (ecb_expect_false (!e))
1211 {
1212 if (ecb_expect_true (!m))
1213 /* zero, handled by code below by forcing e to 0 */
1214 e = 0 - (127 - 15);
1215 else
1216 {
1217 /* subnormal, renormalise */
1218 unsigned int s = 10 - ecb_ld32 (m);
1219
1220 m = (m << s) & 0x3ff; /* mask implicit bit */
1221 e -= s - 1;
1222 }
1223 }
1224
1225 /* e and m now are normalised, or zero, (or inf or nan) */
1226 e += 127 - 15;
1227
1228 return s | (e << 23) | (m << (23 - 10));
1229}
1230
1231ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1232ecb_function_ ecb_const uint16_t
1233ecb_binary32_to_binary16 (uint32_t x)
1234{
1235 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1236 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1237 unsigned int m = x & 0x007fffff;
1238
1239 x &= 0x7fffffff;
1240
1241 /* if it's within range of binary16 normals, use fast path */
1242 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1243 {
1244 /* mantissa round-to-even */
1245 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1246
1247 /* handle overflow */
1248 if (ecb_expect_false (m >= 0x00800000))
1249 {
1250 m >>= 1;
1251 e += 1;
1252 }
1253
1254 return s | (e << 10) | (m >> (23 - 10));
1255 }
1256
1257 /* handle large numbers and infinity */
1258 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1259 return s | 0x7c00;
1260
1261 /* handle zero, subnormals and small numbers */
1262 if (ecb_expect_true (x < 0x38800000))
1263 {
1264 /* zero */
1265 if (ecb_expect_true (!x))
1266 return s;
1267
1268 /* handle subnormals */
1269
1270 /* too small, will be zero */
1271 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1272 return s;
1273
1274 m |= 0x00800000; /* make implicit bit explicit */
1275
1276 /* very tricky - we need to round to the nearest e (+10) bit value */
1277 {
1278 unsigned int bits = 14 - e;
1279 unsigned int half = (1 << (bits - 1)) - 1;
1280 unsigned int even = (m >> bits) & 1;
1281
1282 /* if this overflows, we will end up with a normalised number */
1283 m = (m + half + even) >> bits;
1284 }
1285
1286 return s | m;
1287 }
1288
1289 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1290 m >>= 13;
1291
1292 return s | 0x7c00 | m | !m;
1293}
1294
1073/*******************************************************************************/ 1295/*******************************************************************************/
1074/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1296/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1075 1297
1076/* basically, everything uses "ieee pure-endian" floating point numbers */ 1298/* basically, everything uses "ieee pure-endian" floating point numbers */
1077/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1299/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1078#if 0 \ 1300#if 0 \
1079 || __i386 || __i386__ \ 1301 || __i386 || __i386__ \
1080 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1302 || ECB_GCC_AMD64 \
1081 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1303 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1082 || defined __s390__ || defined __s390x__ \ 1304 || defined __s390__ || defined __s390x__ \
1083 || defined __mips__ \ 1305 || defined __mips__ \
1084 || defined __alpha__ \ 1306 || defined __alpha__ \
1085 || defined __hppa__ \ 1307 || defined __hppa__ \
1086 || defined __ia64__ \ 1308 || defined __ia64__ \
1087 || defined __m68k__ \ 1309 || defined __m68k__ \
1088 || defined __m88k__ \ 1310 || defined __m88k__ \
1089 || defined __sh__ \ 1311 || defined __sh__ \
1090 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1312 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1091 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1313 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1092 | defined __aarch64__ 1314 || defined __aarch64__
1093 #define ECB_STDFP 1 1315 #define ECB_STDFP 1
1094 #include <string.h> /* for memcpy */ 1316 #include <string.h> /* for memcpy */
1095#else 1317#else
1096 #define ECB_STDFP 0 1318 #define ECB_STDFP 0
1097#endif 1319#endif
1111 #define ECB_NAN NAN 1333 #define ECB_NAN NAN
1112 #else 1334 #else
1113 #define ECB_NAN ECB_INFINITY 1335 #define ECB_NAN ECB_INFINITY
1114 #endif 1336 #endif
1115 1337
1116 /* converts an ieee half/binary16 to a float */ 1338 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1117 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1339 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1118 ecb_function_ float 1340 #define ecb_frexpf(x,e) frexpf ((x), (e))
1119 ecb_binary16_to_float (uint16_t x) 1341 #else
1120 { 1342 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1121 int e = (x >> 10) & 0x1f; 1343 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1122 int m = x & 0x3ff; 1344 #endif
1123 float r;
1124
1125 if (!e ) r = ldexpf (m , -24);
1126 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1127 else if (m ) r = ECB_NAN;
1128 else r = ECB_INFINITY;
1129
1130 return x & 0x8000 ? -r : r;
1131 }
1132 1345
1133 /* convert a float to ieee single/binary32 */ 1346 /* convert a float to ieee single/binary32 */
1134 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1347 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1135 ecb_function_ uint32_t 1348 ecb_function_ ecb_const uint32_t
1136 ecb_float_to_binary32 (float x) 1349 ecb_float_to_binary32 (float x)
1137 { 1350 {
1138 uint32_t r; 1351 uint32_t r;
1139 1352
1140 #if ECB_STDFP 1353 #if ECB_STDFP
1147 if (x == 0e0f ) return 0x00000000U; 1360 if (x == 0e0f ) return 0x00000000U;
1148 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1361 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1149 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1362 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1150 if (x != x ) return 0x7fbfffffU; 1363 if (x != x ) return 0x7fbfffffU;
1151 1364
1152 m = frexpf (x, &e) * 0x1000000U; 1365 m = ecb_frexpf (x, &e) * 0x1000000U;
1153 1366
1154 r = m & 0x80000000U; 1367 r = m & 0x80000000U;
1155 1368
1156 if (r) 1369 if (r)
1157 m = -m; 1370 m = -m;
1169 1382
1170 return r; 1383 return r;
1171 } 1384 }
1172 1385
1173 /* converts an ieee single/binary32 to a float */ 1386 /* converts an ieee single/binary32 to a float */
1174 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1387 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1175 ecb_function_ float 1388 ecb_function_ ecb_const float
1176 ecb_binary32_to_float (uint32_t x) 1389 ecb_binary32_to_float (uint32_t x)
1177 { 1390 {
1178 float r; 1391 float r;
1179 1392
1180 #if ECB_STDFP 1393 #if ECB_STDFP
1190 x |= 0x800000U; 1403 x |= 0x800000U;
1191 else 1404 else
1192 e = 1; 1405 e = 1;
1193 1406
1194 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1407 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1195 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1408 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1196 1409
1197 r = neg ? -r : r; 1410 r = neg ? -r : r;
1198 #endif 1411 #endif
1199 1412
1200 return r; 1413 return r;
1201 } 1414 }
1202 1415
1203 /* convert a double to ieee double/binary64 */ 1416 /* convert a double to ieee double/binary64 */
1204 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1417 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1205 ecb_function_ uint64_t 1418 ecb_function_ ecb_const uint64_t
1206 ecb_double_to_binary64 (double x) 1419 ecb_double_to_binary64 (double x)
1207 { 1420 {
1208 uint64_t r; 1421 uint64_t r;
1209 1422
1210 #if ECB_STDFP 1423 #if ECB_STDFP
1239 1452
1240 return r; 1453 return r;
1241 } 1454 }
1242 1455
1243 /* converts an ieee double/binary64 to a double */ 1456 /* converts an ieee double/binary64 to a double */
1244 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1457 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1245 ecb_function_ double 1458 ecb_function_ ecb_const double
1246 ecb_binary64_to_double (uint64_t x) 1459 ecb_binary64_to_double (uint64_t x)
1247 { 1460 {
1248 double r; 1461 double r;
1249 1462
1250 #if ECB_STDFP 1463 #if ECB_STDFP
1266 1479
1267 r = neg ? -r : r; 1480 r = neg ? -r : r;
1268 #endif 1481 #endif
1269 1482
1270 return r; 1483 return r;
1484 }
1485
1486 /* convert a float to ieee half/binary16 */
1487 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1488 ecb_function_ ecb_const uint16_t
1489 ecb_float_to_binary16 (float x)
1490 {
1491 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1492 }
1493
1494 /* convert an ieee half/binary16 to float */
1495 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1496 ecb_function_ ecb_const float
1497 ecb_binary16_to_float (uint16_t x)
1498 {
1499 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1271 } 1500 }
1272 1501
1273#endif 1502#endif
1274 1503
1275#endif 1504#endif
1300#define inline_size ecb_inline 1529#define inline_size ecb_inline
1301 1530
1302#if EV_FEATURE_CODE 1531#if EV_FEATURE_CODE
1303# define inline_speed ecb_inline 1532# define inline_speed ecb_inline
1304#else 1533#else
1305# define inline_speed static noinline 1534# define inline_speed noinline static
1306#endif 1535#endif
1307 1536
1308#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1309 1538
1310#if EV_MINPRI == EV_MAXPRI 1539#if EV_MINPRI == EV_MAXPRI
1357#else 1586#else
1358 1587
1359#include <float.h> 1588#include <float.h>
1360 1589
1361/* a floor() replacement function, should be independent of ev_tstamp type */ 1590/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline
1362static ev_tstamp noinline 1592static ev_tstamp
1363ev_floor (ev_tstamp v) 1593ev_floor (ev_tstamp v)
1364{ 1594{
1365 /* the choice of shift factor is not terribly important */ 1595 /* the choice of shift factor is not terribly important */
1366#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1367 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1399 1629
1400#ifdef __linux 1630#ifdef __linux
1401# include <sys/utsname.h> 1631# include <sys/utsname.h>
1402#endif 1632#endif
1403 1633
1404static unsigned int noinline ecb_cold 1634noinline ecb_cold
1635static unsigned int
1405ev_linux_version (void) 1636ev_linux_version (void)
1406{ 1637{
1407#ifdef __linux 1638#ifdef __linux
1408 unsigned int v = 0; 1639 unsigned int v = 0;
1409 struct utsname buf; 1640 struct utsname buf;
1438} 1669}
1439 1670
1440/*****************************************************************************/ 1671/*****************************************************************************/
1441 1672
1442#if EV_AVOID_STDIO 1673#if EV_AVOID_STDIO
1443static void noinline ecb_cold 1674noinline ecb_cold
1675static void
1444ev_printerr (const char *msg) 1676ev_printerr (const char *msg)
1445{ 1677{
1446 write (STDERR_FILENO, msg, strlen (msg)); 1678 write (STDERR_FILENO, msg, strlen (msg));
1447} 1679}
1448#endif 1680#endif
1449 1681
1450static void (*syserr_cb)(const char *msg) EV_THROW; 1682static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1451 1683
1452void ecb_cold 1684ecb_cold
1685void
1453ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1686ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1454{ 1687{
1455 syserr_cb = cb; 1688 syserr_cb = cb;
1456} 1689}
1457 1690
1458static void noinline ecb_cold 1691noinline ecb_cold
1692static void
1459ev_syserr (const char *msg) 1693ev_syserr (const char *msg)
1460{ 1694{
1461 if (!msg) 1695 if (!msg)
1462 msg = "(libev) system error"; 1696 msg = "(libev) system error";
1463 1697
1476 abort (); 1710 abort ();
1477 } 1711 }
1478} 1712}
1479 1713
1480static void * 1714static void *
1481ev_realloc_emul (void *ptr, long size) EV_THROW 1715ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1482{ 1716{
1483 /* some systems, notably openbsd and darwin, fail to properly 1717 /* some systems, notably openbsd and darwin, fail to properly
1484 * implement realloc (x, 0) (as required by both ansi c-89 and 1718 * implement realloc (x, 0) (as required by both ansi c-89 and
1485 * the single unix specification, so work around them here. 1719 * the single unix specification, so work around them here.
1486 * recently, also (at least) fedora and debian started breaking it, 1720 * recently, also (at least) fedora and debian started breaking it,
1492 1726
1493 free (ptr); 1727 free (ptr);
1494 return 0; 1728 return 0;
1495} 1729}
1496 1730
1497static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1731static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1498 1732
1499void ecb_cold 1733ecb_cold
1734void
1500ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1735ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1501{ 1736{
1502 alloc = cb; 1737 alloc = cb;
1503} 1738}
1504 1739
1505inline_speed void * 1740inline_speed void *
1622 1857
1623/*****************************************************************************/ 1858/*****************************************************************************/
1624 1859
1625#ifndef EV_HAVE_EV_TIME 1860#ifndef EV_HAVE_EV_TIME
1626ev_tstamp 1861ev_tstamp
1627ev_time (void) EV_THROW 1862ev_time (void) EV_NOEXCEPT
1628{ 1863{
1629#if EV_USE_REALTIME 1864#if EV_USE_REALTIME
1630 if (expect_true (have_realtime)) 1865 if (expect_true (have_realtime))
1631 { 1866 {
1632 struct timespec ts; 1867 struct timespec ts;
1656 return ev_time (); 1891 return ev_time ();
1657} 1892}
1658 1893
1659#if EV_MULTIPLICITY 1894#if EV_MULTIPLICITY
1660ev_tstamp 1895ev_tstamp
1661ev_now (EV_P) EV_THROW 1896ev_now (EV_P) EV_NOEXCEPT
1662{ 1897{
1663 return ev_rt_now; 1898 return ev_rt_now;
1664} 1899}
1665#endif 1900#endif
1666 1901
1667void 1902void
1668ev_sleep (ev_tstamp delay) EV_THROW 1903ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1669{ 1904{
1670 if (delay > 0.) 1905 if (delay > 0.)
1671 { 1906 {
1672#if EV_USE_NANOSLEEP 1907#if EV_USE_NANOSLEEP
1673 struct timespec ts; 1908 struct timespec ts;
1674 1909
1675 EV_TS_SET (ts, delay); 1910 EV_TS_SET (ts, delay);
1676 nanosleep (&ts, 0); 1911 nanosleep (&ts, 0);
1677#elif defined _WIN32 1912#elif defined _WIN32
1913 /* maybe this should round up, as ms is very low resolution */
1914 /* compared to select (µs) or nanosleep (ns) */
1678 Sleep ((unsigned long)(delay * 1e3)); 1915 Sleep ((unsigned long)(delay * 1e3));
1679#else 1916#else
1680 struct timeval tv; 1917 struct timeval tv;
1681 1918
1682 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1919 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1713 } 1950 }
1714 1951
1715 return ncur; 1952 return ncur;
1716} 1953}
1717 1954
1718static void * noinline ecb_cold 1955noinline ecb_cold
1956static void *
1719array_realloc (int elem, void *base, int *cur, int cnt) 1957array_realloc (int elem, void *base, int *cur, int cnt)
1720{ 1958{
1721 *cur = array_nextsize (elem, *cur, cnt); 1959 *cur = array_nextsize (elem, *cur, cnt);
1722 return ev_realloc (base, elem * *cur); 1960 return ev_realloc (base, elem * *cur);
1723} 1961}
1726 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1727 1965
1728#define array_needsize(type,base,cur,cnt,init) \ 1966#define array_needsize(type,base,cur,cnt,init) \
1729 if (expect_false ((cnt) > (cur))) \ 1967 if (expect_false ((cnt) > (cur))) \
1730 { \ 1968 { \
1731 int ecb_unused ocur_ = (cur); \ 1969 ecb_unused int ocur_ = (cur); \
1732 (base) = (type *)array_realloc \ 1970 (base) = (type *)array_realloc \
1733 (sizeof (type), (base), &(cur), (cnt)); \ 1971 (sizeof (type), (base), &(cur), (cnt)); \
1734 init ((base) + (ocur_), (cur) - ocur_); \ 1972 init ((base) + (ocur_), (cur) - ocur_); \
1735 } 1973 }
1736 1974
1748 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1986 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1749 1987
1750/*****************************************************************************/ 1988/*****************************************************************************/
1751 1989
1752/* dummy callback for pending events */ 1990/* dummy callback for pending events */
1753static void noinline 1991noinline
1992static void
1754pendingcb (EV_P_ ev_prepare *w, int revents) 1993pendingcb (EV_P_ ev_prepare *w, int revents)
1755{ 1994{
1756} 1995}
1757 1996
1758void noinline 1997noinline
1998void
1759ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1999ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1760{ 2000{
1761 W w_ = (W)w; 2001 W w_ = (W)w;
1762 int pri = ABSPRI (w_); 2002 int pri = ABSPRI (w_);
1763 2003
1764 if (expect_false (w_->pending)) 2004 if (expect_false (w_->pending))
1825 if (expect_true (!anfd->reify)) 2065 if (expect_true (!anfd->reify))
1826 fd_event_nocheck (EV_A_ fd, revents); 2066 fd_event_nocheck (EV_A_ fd, revents);
1827} 2067}
1828 2068
1829void 2069void
1830ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2070ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1831{ 2071{
1832 if (fd >= 0 && fd < anfdmax) 2072 if (fd >= 0 && fd < anfdmax)
1833 fd_event_nocheck (EV_A_ fd, revents); 2073 fd_event_nocheck (EV_A_ fd, revents);
1834} 2074}
1835 2075
1893 2133
1894 fdchangecnt = 0; 2134 fdchangecnt = 0;
1895} 2135}
1896 2136
1897/* something about the given fd changed */ 2137/* something about the given fd changed */
1898inline_size void 2138inline_size
2139void
1899fd_change (EV_P_ int fd, int flags) 2140fd_change (EV_P_ int fd, int flags)
1900{ 2141{
1901 unsigned char reify = anfds [fd].reify; 2142 unsigned char reify = anfds [fd].reify;
1902 anfds [fd].reify |= flags; 2143 anfds [fd].reify |= flags;
1903 2144
1908 fdchanges [fdchangecnt - 1] = fd; 2149 fdchanges [fdchangecnt - 1] = fd;
1909 } 2150 }
1910} 2151}
1911 2152
1912/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2153/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1913inline_speed void ecb_cold 2154inline_speed ecb_cold void
1914fd_kill (EV_P_ int fd) 2155fd_kill (EV_P_ int fd)
1915{ 2156{
1916 ev_io *w; 2157 ev_io *w;
1917 2158
1918 while ((w = (ev_io *)anfds [fd].head)) 2159 while ((w = (ev_io *)anfds [fd].head))
1921 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2162 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1922 } 2163 }
1923} 2164}
1924 2165
1925/* check whether the given fd is actually valid, for error recovery */ 2166/* check whether the given fd is actually valid, for error recovery */
1926inline_size int ecb_cold 2167inline_size ecb_cold int
1927fd_valid (int fd) 2168fd_valid (int fd)
1928{ 2169{
1929#ifdef _WIN32 2170#ifdef _WIN32
1930 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2171 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1931#else 2172#else
1932 return fcntl (fd, F_GETFD) != -1; 2173 return fcntl (fd, F_GETFD) != -1;
1933#endif 2174#endif
1934} 2175}
1935 2176
1936/* called on EBADF to verify fds */ 2177/* called on EBADF to verify fds */
1937static void noinline ecb_cold 2178noinline ecb_cold
2179static void
1938fd_ebadf (EV_P) 2180fd_ebadf (EV_P)
1939{ 2181{
1940 int fd; 2182 int fd;
1941 2183
1942 for (fd = 0; fd < anfdmax; ++fd) 2184 for (fd = 0; fd < anfdmax; ++fd)
1944 if (!fd_valid (fd) && errno == EBADF) 2186 if (!fd_valid (fd) && errno == EBADF)
1945 fd_kill (EV_A_ fd); 2187 fd_kill (EV_A_ fd);
1946} 2188}
1947 2189
1948/* called on ENOMEM in select/poll to kill some fds and retry */ 2190/* called on ENOMEM in select/poll to kill some fds and retry */
1949static void noinline ecb_cold 2191noinline ecb_cold
2192static void
1950fd_enomem (EV_P) 2193fd_enomem (EV_P)
1951{ 2194{
1952 int fd; 2195 int fd;
1953 2196
1954 for (fd = anfdmax; fd--; ) 2197 for (fd = anfdmax; fd--; )
1958 break; 2201 break;
1959 } 2202 }
1960} 2203}
1961 2204
1962/* usually called after fork if backend needs to re-arm all fds from scratch */ 2205/* usually called after fork if backend needs to re-arm all fds from scratch */
1963static void noinline 2206noinline
2207static void
1964fd_rearm_all (EV_P) 2208fd_rearm_all (EV_P)
1965{ 2209{
1966 int fd; 2210 int fd;
1967 2211
1968 for (fd = 0; fd < anfdmax; ++fd) 2212 for (fd = 0; fd < anfdmax; ++fd)
2149 2393
2150/*****************************************************************************/ 2394/*****************************************************************************/
2151 2395
2152#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2153 2397
2154static void noinline ecb_cold 2398noinline ecb_cold
2399static void
2155evpipe_init (EV_P) 2400evpipe_init (EV_P)
2156{ 2401{
2157 if (!ev_is_active (&pipe_w)) 2402 if (!ev_is_active (&pipe_w))
2158 { 2403 {
2159 int fds [2]; 2404 int fds [2];
2230#endif 2475#endif
2231 { 2476 {
2232#ifdef _WIN32 2477#ifdef _WIN32
2233 WSABUF buf; 2478 WSABUF buf;
2234 DWORD sent; 2479 DWORD sent;
2235 buf.buf = &buf; 2480 buf.buf = (char *)&buf;
2236 buf.len = 1; 2481 buf.len = 1;
2237 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2482 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2238#else 2483#else
2239 write (evpipe [1], &(evpipe [1]), 1); 2484 write (evpipe [1], &(evpipe [1]), 1);
2240#endif 2485#endif
2312} 2557}
2313 2558
2314/*****************************************************************************/ 2559/*****************************************************************************/
2315 2560
2316void 2561void
2317ev_feed_signal (int signum) EV_THROW 2562ev_feed_signal (int signum) EV_NOEXCEPT
2318{ 2563{
2319#if EV_MULTIPLICITY 2564#if EV_MULTIPLICITY
2320 EV_P; 2565 EV_P;
2321 ECB_MEMORY_FENCE_ACQUIRE; 2566 ECB_MEMORY_FENCE_ACQUIRE;
2322 EV_A = signals [signum - 1].loop; 2567 EV_A = signals [signum - 1].loop;
2337#endif 2582#endif
2338 2583
2339 ev_feed_signal (signum); 2584 ev_feed_signal (signum);
2340} 2585}
2341 2586
2342void noinline 2587noinline
2588void
2343ev_feed_signal_event (EV_P_ int signum) EV_THROW 2589ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2344{ 2590{
2345 WL w; 2591 WL w;
2346 2592
2347 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2593 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2348 return; 2594 return;
2464#endif 2710#endif
2465#if EV_USE_SELECT 2711#if EV_USE_SELECT
2466# include "ev_select.c" 2712# include "ev_select.c"
2467#endif 2713#endif
2468 2714
2469int ecb_cold 2715ecb_cold int
2470ev_version_major (void) EV_THROW 2716ev_version_major (void) EV_NOEXCEPT
2471{ 2717{
2472 return EV_VERSION_MAJOR; 2718 return EV_VERSION_MAJOR;
2473} 2719}
2474 2720
2475int ecb_cold 2721ecb_cold int
2476ev_version_minor (void) EV_THROW 2722ev_version_minor (void) EV_NOEXCEPT
2477{ 2723{
2478 return EV_VERSION_MINOR; 2724 return EV_VERSION_MINOR;
2479} 2725}
2480 2726
2481/* return true if we are running with elevated privileges and should ignore env variables */ 2727/* return true if we are running with elevated privileges and should ignore env variables */
2482int inline_size ecb_cold 2728inline_size ecb_cold int
2483enable_secure (void) 2729enable_secure (void)
2484{ 2730{
2485#ifdef _WIN32 2731#ifdef _WIN32
2486 return 0; 2732 return 0;
2487#else 2733#else
2488 return getuid () != geteuid () 2734 return getuid () != geteuid ()
2489 || getgid () != getegid (); 2735 || getgid () != getegid ();
2490#endif 2736#endif
2491} 2737}
2492 2738
2493unsigned int ecb_cold 2739ecb_cold
2740unsigned int
2494ev_supported_backends (void) EV_THROW 2741ev_supported_backends (void) EV_NOEXCEPT
2495{ 2742{
2496 unsigned int flags = 0; 2743 unsigned int flags = 0;
2497 2744
2498 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2499 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2746 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2502 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2503 2750
2504 return flags; 2751 return flags;
2505} 2752}
2506 2753
2507unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2508ev_recommended_backends (void) EV_THROW 2756ev_recommended_backends (void) EV_NOEXCEPT
2509{ 2757{
2510 unsigned int flags = ev_supported_backends (); 2758 unsigned int flags = ev_supported_backends ();
2511 2759
2512#ifndef __NetBSD__ 2760#ifndef __NetBSD__
2513 /* kqueue is borked on everything but netbsd apparently */ 2761 /* kqueue is borked on everything but netbsd apparently */
2524#endif 2772#endif
2525 2773
2526 return flags; 2774 return flags;
2527} 2775}
2528 2776
2529unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2530ev_embeddable_backends (void) EV_THROW 2779ev_embeddable_backends (void) EV_NOEXCEPT
2531{ 2780{
2532 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2533 2782
2534 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2783 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2535 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2784 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2537 2786
2538 return flags; 2787 return flags;
2539} 2788}
2540 2789
2541unsigned int 2790unsigned int
2542ev_backend (EV_P) EV_THROW 2791ev_backend (EV_P) EV_NOEXCEPT
2543{ 2792{
2544 return backend; 2793 return backend;
2545} 2794}
2546 2795
2547#if EV_FEATURE_API 2796#if EV_FEATURE_API
2548unsigned int 2797unsigned int
2549ev_iteration (EV_P) EV_THROW 2798ev_iteration (EV_P) EV_NOEXCEPT
2550{ 2799{
2551 return loop_count; 2800 return loop_count;
2552} 2801}
2553 2802
2554unsigned int 2803unsigned int
2555ev_depth (EV_P) EV_THROW 2804ev_depth (EV_P) EV_NOEXCEPT
2556{ 2805{
2557 return loop_depth; 2806 return loop_depth;
2558} 2807}
2559 2808
2560void 2809void
2561ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2810ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2562{ 2811{
2563 io_blocktime = interval; 2812 io_blocktime = interval;
2564} 2813}
2565 2814
2566void 2815void
2567ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2816ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2568{ 2817{
2569 timeout_blocktime = interval; 2818 timeout_blocktime = interval;
2570} 2819}
2571 2820
2572void 2821void
2573ev_set_userdata (EV_P_ void *data) EV_THROW 2822ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2574{ 2823{
2575 userdata = data; 2824 userdata = data;
2576} 2825}
2577 2826
2578void * 2827void *
2579ev_userdata (EV_P) EV_THROW 2828ev_userdata (EV_P) EV_NOEXCEPT
2580{ 2829{
2581 return userdata; 2830 return userdata;
2582} 2831}
2583 2832
2584void 2833void
2585ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2834ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2586{ 2835{
2587 invoke_cb = invoke_pending_cb; 2836 invoke_cb = invoke_pending_cb;
2588} 2837}
2589 2838
2590void 2839void
2591ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2840ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2592{ 2841{
2593 release_cb = release; 2842 release_cb = release;
2594 acquire_cb = acquire; 2843 acquire_cb = acquire;
2595} 2844}
2596#endif 2845#endif
2597 2846
2598/* initialise a loop structure, must be zero-initialised */ 2847/* initialise a loop structure, must be zero-initialised */
2599static void noinline ecb_cold 2848noinline ecb_cold
2849static void
2600loop_init (EV_P_ unsigned int flags) EV_THROW 2850loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2601{ 2851{
2602 if (!backend) 2852 if (!backend)
2603 { 2853 {
2604 origflags = flags; 2854 origflags = flags;
2605 2855
2691#endif 2941#endif
2692 } 2942 }
2693} 2943}
2694 2944
2695/* free up a loop structure */ 2945/* free up a loop structure */
2696void ecb_cold 2946ecb_cold
2947void
2697ev_loop_destroy (EV_P) 2948ev_loop_destroy (EV_P)
2698{ 2949{
2699 int i; 2950 int i;
2700 2951
2701#if EV_MULTIPLICITY 2952#if EV_MULTIPLICITY
2822#if EV_USE_INOTIFY 3073#if EV_USE_INOTIFY
2823 infy_fork (EV_A); 3074 infy_fork (EV_A);
2824#endif 3075#endif
2825 3076
2826#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2827 if (ev_is_active (&pipe_w)) 3078 if (ev_is_active (&pipe_w) && postfork != 2)
2828 { 3079 {
2829 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3080 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2830 3081
2831 ev_ref (EV_A); 3082 ev_ref (EV_A);
2832 ev_io_stop (EV_A_ &pipe_w); 3083 ev_io_stop (EV_A_ &pipe_w);
2843 postfork = 0; 3094 postfork = 0;
2844} 3095}
2845 3096
2846#if EV_MULTIPLICITY 3097#if EV_MULTIPLICITY
2847 3098
3099ecb_cold
2848struct ev_loop * ecb_cold 3100struct ev_loop *
2849ev_loop_new (unsigned int flags) EV_THROW 3101ev_loop_new (unsigned int flags) EV_NOEXCEPT
2850{ 3102{
2851 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2852 3104
2853 memset (EV_A, 0, sizeof (struct ev_loop)); 3105 memset (EV_A, 0, sizeof (struct ev_loop));
2854 loop_init (EV_A_ flags); 3106 loop_init (EV_A_ flags);
2861} 3113}
2862 3114
2863#endif /* multiplicity */ 3115#endif /* multiplicity */
2864 3116
2865#if EV_VERIFY 3117#if EV_VERIFY
2866static void noinline ecb_cold 3118noinline ecb_cold
3119static void
2867verify_watcher (EV_P_ W w) 3120verify_watcher (EV_P_ W w)
2868{ 3121{
2869 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3122 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2870 3123
2871 if (w->pending) 3124 if (w->pending)
2872 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3125 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2873} 3126}
2874 3127
2875static void noinline ecb_cold 3128noinline ecb_cold
3129static void
2876verify_heap (EV_P_ ANHE *heap, int N) 3130verify_heap (EV_P_ ANHE *heap, int N)
2877{ 3131{
2878 int i; 3132 int i;
2879 3133
2880 for (i = HEAP0; i < N + HEAP0; ++i) 3134 for (i = HEAP0; i < N + HEAP0; ++i)
2885 3139
2886 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2887 } 3141 }
2888} 3142}
2889 3143
2890static void noinline ecb_cold 3144noinline ecb_cold
3145static void
2891array_verify (EV_P_ W *ws, int cnt) 3146array_verify (EV_P_ W *ws, int cnt)
2892{ 3147{
2893 while (cnt--) 3148 while (cnt--)
2894 { 3149 {
2895 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3150 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
2898} 3153}
2899#endif 3154#endif
2900 3155
2901#if EV_FEATURE_API 3156#if EV_FEATURE_API
2902void ecb_cold 3157void ecb_cold
2903ev_verify (EV_P) EV_THROW 3158ev_verify (EV_P) EV_NOEXCEPT
2904{ 3159{
2905#if EV_VERIFY 3160#if EV_VERIFY
2906 int i; 3161 int i;
2907 WL w, w2; 3162 WL w, w2;
2908 3163
2984#endif 3239#endif
2985} 3240}
2986#endif 3241#endif
2987 3242
2988#if EV_MULTIPLICITY 3243#if EV_MULTIPLICITY
3244ecb_cold
2989struct ev_loop * ecb_cold 3245struct ev_loop *
2990#else 3246#else
2991int 3247int
2992#endif 3248#endif
2993ev_default_loop (unsigned int flags) EV_THROW 3249ev_default_loop (unsigned int flags) EV_NOEXCEPT
2994{ 3250{
2995 if (!ev_default_loop_ptr) 3251 if (!ev_default_loop_ptr)
2996 { 3252 {
2997#if EV_MULTIPLICITY 3253#if EV_MULTIPLICITY
2998 EV_P = ev_default_loop_ptr = &default_loop_struct; 3254 EV_P = ev_default_loop_ptr = &default_loop_struct;
3017 3273
3018 return ev_default_loop_ptr; 3274 return ev_default_loop_ptr;
3019} 3275}
3020 3276
3021void 3277void
3022ev_loop_fork (EV_P) EV_THROW 3278ev_loop_fork (EV_P) EV_NOEXCEPT
3023{ 3279{
3024 postfork = 1; 3280 postfork = 1;
3025} 3281}
3026 3282
3027/*****************************************************************************/ 3283/*****************************************************************************/
3031{ 3287{
3032 EV_CB_INVOKE ((W)w, revents); 3288 EV_CB_INVOKE ((W)w, revents);
3033} 3289}
3034 3290
3035unsigned int 3291unsigned int
3036ev_pending_count (EV_P) EV_THROW 3292ev_pending_count (EV_P) EV_NOEXCEPT
3037{ 3293{
3038 int pri; 3294 int pri;
3039 unsigned int count = 0; 3295 unsigned int count = 0;
3040 3296
3041 for (pri = NUMPRI; pri--; ) 3297 for (pri = NUMPRI; pri--; )
3042 count += pendingcnt [pri]; 3298 count += pendingcnt [pri];
3043 3299
3044 return count; 3300 return count;
3045} 3301}
3046 3302
3047void noinline 3303noinline
3304void
3048ev_invoke_pending (EV_P) 3305ev_invoke_pending (EV_P)
3049{ 3306{
3050 pendingpri = NUMPRI; 3307 pendingpri = NUMPRI;
3051 3308
3052 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3309 do
3053 { 3310 {
3054 --pendingpri; 3311 --pendingpri;
3055 3312
3313 /* pendingpri possibly gets modified in the inner loop */
3056 while (pendingcnt [pendingpri]) 3314 while (pendingcnt [pendingpri])
3057 { 3315 {
3058 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3316 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3059 3317
3060 p->w->pending = 0; 3318 p->w->pending = 0;
3061 EV_CB_INVOKE (p->w, p->events); 3319 EV_CB_INVOKE (p->w, p->events);
3062 EV_FREQUENT_CHECK; 3320 EV_FREQUENT_CHECK;
3063 } 3321 }
3064 } 3322 }
3323 while (pendingpri);
3065} 3324}
3066 3325
3067#if EV_IDLE_ENABLE 3326#if EV_IDLE_ENABLE
3068/* make idle watchers pending. this handles the "call-idle */ 3327/* make idle watchers pending. this handles the "call-idle */
3069/* only when higher priorities are idle" logic */ 3328/* only when higher priorities are idle" logic */
3127 } 3386 }
3128} 3387}
3129 3388
3130#if EV_PERIODIC_ENABLE 3389#if EV_PERIODIC_ENABLE
3131 3390
3132static void noinline 3391noinline
3392static void
3133periodic_recalc (EV_P_ ev_periodic *w) 3393periodic_recalc (EV_P_ ev_periodic *w)
3134{ 3394{
3135 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3395 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3136 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3396 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3137 3397
3195 } 3455 }
3196} 3456}
3197 3457
3198/* simply recalculate all periodics */ 3458/* simply recalculate all periodics */
3199/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3459/* TODO: maybe ensure that at least one event happens when jumping forward? */
3200static void noinline ecb_cold 3460noinline ecb_cold
3461static void
3201periodics_reschedule (EV_P) 3462periodics_reschedule (EV_P)
3202{ 3463{
3203 int i; 3464 int i;
3204 3465
3205 /* adjust periodics after time jump */ 3466 /* adjust periodics after time jump */
3218 reheap (periodics, periodiccnt); 3479 reheap (periodics, periodiccnt);
3219} 3480}
3220#endif 3481#endif
3221 3482
3222/* adjust all timers by a given offset */ 3483/* adjust all timers by a given offset */
3223static void noinline ecb_cold 3484noinline ecb_cold
3485static void
3224timers_reschedule (EV_P_ ev_tstamp adjust) 3486timers_reschedule (EV_P_ ev_tstamp adjust)
3225{ 3487{
3226 int i; 3488 int i;
3227 3489
3228 for (i = 0; i < timercnt; ++i) 3490 for (i = 0; i < timercnt; ++i)
3475 3737
3476 return activecnt; 3738 return activecnt;
3477} 3739}
3478 3740
3479void 3741void
3480ev_break (EV_P_ int how) EV_THROW 3742ev_break (EV_P_ int how) EV_NOEXCEPT
3481{ 3743{
3482 loop_done = how; 3744 loop_done = how;
3483} 3745}
3484 3746
3485void 3747void
3486ev_ref (EV_P) EV_THROW 3748ev_ref (EV_P) EV_NOEXCEPT
3487{ 3749{
3488 ++activecnt; 3750 ++activecnt;
3489} 3751}
3490 3752
3491void 3753void
3492ev_unref (EV_P) EV_THROW 3754ev_unref (EV_P) EV_NOEXCEPT
3493{ 3755{
3494 --activecnt; 3756 --activecnt;
3495} 3757}
3496 3758
3497void 3759void
3498ev_now_update (EV_P) EV_THROW 3760ev_now_update (EV_P) EV_NOEXCEPT
3499{ 3761{
3500 time_update (EV_A_ 1e100); 3762 time_update (EV_A_ 1e100);
3501} 3763}
3502 3764
3503void 3765void
3504ev_suspend (EV_P) EV_THROW 3766ev_suspend (EV_P) EV_NOEXCEPT
3505{ 3767{
3506 ev_now_update (EV_A); 3768 ev_now_update (EV_A);
3507} 3769}
3508 3770
3509void 3771void
3510ev_resume (EV_P) EV_THROW 3772ev_resume (EV_P) EV_NOEXCEPT
3511{ 3773{
3512 ev_tstamp mn_prev = mn_now; 3774 ev_tstamp mn_prev = mn_now;
3513 3775
3514 ev_now_update (EV_A); 3776 ev_now_update (EV_A);
3515 timers_reschedule (EV_A_ mn_now - mn_prev); 3777 timers_reschedule (EV_A_ mn_now - mn_prev);
3554 w->pending = 0; 3816 w->pending = 0;
3555 } 3817 }
3556} 3818}
3557 3819
3558int 3820int
3559ev_clear_pending (EV_P_ void *w) EV_THROW 3821ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3560{ 3822{
3561 W w_ = (W)w; 3823 W w_ = (W)w;
3562 int pending = w_->pending; 3824 int pending = w_->pending;
3563 3825
3564 if (expect_true (pending)) 3826 if (expect_true (pending))
3596 w->active = 0; 3858 w->active = 0;
3597} 3859}
3598 3860
3599/*****************************************************************************/ 3861/*****************************************************************************/
3600 3862
3601void noinline 3863noinline
3864void
3602ev_io_start (EV_P_ ev_io *w) EV_THROW 3865ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3603{ 3866{
3604 int fd = w->fd; 3867 int fd = w->fd;
3605 3868
3606 if (expect_false (ev_is_active (w))) 3869 if (expect_false (ev_is_active (w)))
3607 return; 3870 return;
3622 w->events &= ~EV__IOFDSET; 3885 w->events &= ~EV__IOFDSET;
3623 3886
3624 EV_FREQUENT_CHECK; 3887 EV_FREQUENT_CHECK;
3625} 3888}
3626 3889
3627void noinline 3890noinline
3891void
3628ev_io_stop (EV_P_ ev_io *w) EV_THROW 3892ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3629{ 3893{
3630 clear_pending (EV_A_ (W)w); 3894 clear_pending (EV_A_ (W)w);
3631 if (expect_false (!ev_is_active (w))) 3895 if (expect_false (!ev_is_active (w)))
3632 return; 3896 return;
3633 3897
3641 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3905 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3642 3906
3643 EV_FREQUENT_CHECK; 3907 EV_FREQUENT_CHECK;
3644} 3908}
3645 3909
3646void noinline 3910noinline
3911void
3647ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3912ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3648{ 3913{
3649 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3650 return; 3915 return;
3651 3916
3652 ev_at (w) += mn_now; 3917 ev_at (w) += mn_now;
3665 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3666 3931
3667 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3932 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3668} 3933}
3669 3934
3670void noinline 3935noinline
3936void
3671ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3672{ 3938{
3673 clear_pending (EV_A_ (W)w); 3939 clear_pending (EV_A_ (W)w);
3674 if (expect_false (!ev_is_active (w))) 3940 if (expect_false (!ev_is_active (w)))
3675 return; 3941 return;
3676 3942
3695 ev_stop (EV_A_ (W)w); 3961 ev_stop (EV_A_ (W)w);
3696 3962
3697 EV_FREQUENT_CHECK; 3963 EV_FREQUENT_CHECK;
3698} 3964}
3699 3965
3700void noinline 3966noinline
3967void
3701ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3968ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3702{ 3969{
3703 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3704 3971
3705 clear_pending (EV_A_ (W)w); 3972 clear_pending (EV_A_ (W)w);
3706 3973
3723 3990
3724 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
3725} 3992}
3726 3993
3727ev_tstamp 3994ev_tstamp
3728ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3995ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3729{ 3996{
3730 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3997 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3731} 3998}
3732 3999
3733#if EV_PERIODIC_ENABLE 4000#if EV_PERIODIC_ENABLE
3734void noinline 4001noinline
4002void
3735ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4003ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3736{ 4004{
3737 if (expect_false (ev_is_active (w))) 4005 if (expect_false (ev_is_active (w)))
3738 return; 4006 return;
3739 4007
3740 if (w->reschedule_cb) 4008 if (w->reschedule_cb)
3759 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3760 4028
3761 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4029 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3762} 4030}
3763 4031
3764void noinline 4032noinline
4033void
3765ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4034ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3766{ 4035{
3767 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
3768 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
3769 return; 4038 return;
3770 4039
3787 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3788 4057
3789 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3790} 4059}
3791 4060
3792void noinline 4061noinline
4062void
3793ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4063ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3794{ 4064{
3795 /* TODO: use adjustheap and recalculation */ 4065 /* TODO: use adjustheap and recalculation */
3796 ev_periodic_stop (EV_A_ w); 4066 ev_periodic_stop (EV_A_ w);
3797 ev_periodic_start (EV_A_ w); 4067 ev_periodic_start (EV_A_ w);
3798} 4068}
3802# define SA_RESTART 0 4072# define SA_RESTART 0
3803#endif 4073#endif
3804 4074
3805#if EV_SIGNAL_ENABLE 4075#if EV_SIGNAL_ENABLE
3806 4076
3807void noinline 4077noinline
4078void
3808ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4079ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3809{ 4080{
3810 if (expect_false (ev_is_active (w))) 4081 if (expect_false (ev_is_active (w)))
3811 return; 4082 return;
3812 4083
3813 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4084 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3884 } 4155 }
3885 4156
3886 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3887} 4158}
3888 4159
3889void noinline 4160noinline
4161void
3890ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4162ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3891{ 4163{
3892 clear_pending (EV_A_ (W)w); 4164 clear_pending (EV_A_ (W)w);
3893 if (expect_false (!ev_is_active (w))) 4165 if (expect_false (!ev_is_active (w)))
3894 return; 4166 return;
3895 4167
3926#endif 4198#endif
3927 4199
3928#if EV_CHILD_ENABLE 4200#if EV_CHILD_ENABLE
3929 4201
3930void 4202void
3931ev_child_start (EV_P_ ev_child *w) EV_THROW 4203ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3932{ 4204{
3933#if EV_MULTIPLICITY 4205#if EV_MULTIPLICITY
3934 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4206 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3935#endif 4207#endif
3936 if (expect_false (ev_is_active (w))) 4208 if (expect_false (ev_is_active (w)))
3943 4215
3944 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3945} 4217}
3946 4218
3947void 4219void
3948ev_child_stop (EV_P_ ev_child *w) EV_THROW 4220ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3949{ 4221{
3950 clear_pending (EV_A_ (W)w); 4222 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4223 if (expect_false (!ev_is_active (w)))
3952 return; 4224 return;
3953 4225
3970 4242
3971#define DEF_STAT_INTERVAL 5.0074891 4243#define DEF_STAT_INTERVAL 5.0074891
3972#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4244#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3973#define MIN_STAT_INTERVAL 0.1074891 4245#define MIN_STAT_INTERVAL 0.1074891
3974 4246
3975static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4247noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3976 4248
3977#if EV_USE_INOTIFY 4249#if EV_USE_INOTIFY
3978 4250
3979/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4251/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3980# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4252# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3981 4253
3982static void noinline 4254noinline
4255static void
3983infy_add (EV_P_ ev_stat *w) 4256infy_add (EV_P_ ev_stat *w)
3984{ 4257{
3985 w->wd = inotify_add_watch (fs_fd, w->path, 4258 w->wd = inotify_add_watch (fs_fd, w->path,
3986 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4259 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3987 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4260 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4051 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4324 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4052 ev_timer_again (EV_A_ &w->timer); 4325 ev_timer_again (EV_A_ &w->timer);
4053 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4326 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4054} 4327}
4055 4328
4056static void noinline 4329noinline
4330static void
4057infy_del (EV_P_ ev_stat *w) 4331infy_del (EV_P_ ev_stat *w)
4058{ 4332{
4059 int slot; 4333 int slot;
4060 int wd = w->wd; 4334 int wd = w->wd;
4061 4335
4068 4342
4069 /* remove this watcher, if others are watching it, they will rearm */ 4343 /* remove this watcher, if others are watching it, they will rearm */
4070 inotify_rm_watch (fs_fd, wd); 4344 inotify_rm_watch (fs_fd, wd);
4071} 4345}
4072 4346
4073static void noinline 4347noinline
4348static void
4074infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4349infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4075{ 4350{
4076 if (slot < 0) 4351 if (slot < 0)
4077 /* overflow, need to check for all hash slots */ 4352 /* overflow, need to check for all hash slots */
4078 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4353 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4114 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4389 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4115 ofs += sizeof (struct inotify_event) + ev->len; 4390 ofs += sizeof (struct inotify_event) + ev->len;
4116 } 4391 }
4117} 4392}
4118 4393
4119inline_size void ecb_cold 4394inline_size ecb_cold
4395void
4120ev_check_2625 (EV_P) 4396ev_check_2625 (EV_P)
4121{ 4397{
4122 /* kernels < 2.6.25 are borked 4398 /* kernels < 2.6.25 are borked
4123 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4399 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4124 */ 4400 */
4214#else 4490#else
4215# define EV_LSTAT(p,b) lstat (p, b) 4491# define EV_LSTAT(p,b) lstat (p, b)
4216#endif 4492#endif
4217 4493
4218void 4494void
4219ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4495ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4220{ 4496{
4221 if (lstat (w->path, &w->attr) < 0) 4497 if (lstat (w->path, &w->attr) < 0)
4222 w->attr.st_nlink = 0; 4498 w->attr.st_nlink = 0;
4223 else if (!w->attr.st_nlink) 4499 else if (!w->attr.st_nlink)
4224 w->attr.st_nlink = 1; 4500 w->attr.st_nlink = 1;
4225} 4501}
4226 4502
4227static void noinline 4503noinline
4504static void
4228stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4505stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4229{ 4506{
4230 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4507 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4231 4508
4232 ev_statdata prev = w->attr; 4509 ev_statdata prev = w->attr;
4263 ev_feed_event (EV_A_ w, EV_STAT); 4540 ev_feed_event (EV_A_ w, EV_STAT);
4264 } 4541 }
4265} 4542}
4266 4543
4267void 4544void
4268ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4545ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4269{ 4546{
4270 if (expect_false (ev_is_active (w))) 4547 if (expect_false (ev_is_active (w)))
4271 return; 4548 return;
4272 4549
4273 ev_stat_stat (EV_A_ w); 4550 ev_stat_stat (EV_A_ w);
4294 4571
4295 EV_FREQUENT_CHECK; 4572 EV_FREQUENT_CHECK;
4296} 4573}
4297 4574
4298void 4575void
4299ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4576ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4300{ 4577{
4301 clear_pending (EV_A_ (W)w); 4578 clear_pending (EV_A_ (W)w);
4302 if (expect_false (!ev_is_active (w))) 4579 if (expect_false (!ev_is_active (w)))
4303 return; 4580 return;
4304 4581
4320} 4597}
4321#endif 4598#endif
4322 4599
4323#if EV_IDLE_ENABLE 4600#if EV_IDLE_ENABLE
4324void 4601void
4325ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4602ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4326{ 4603{
4327 if (expect_false (ev_is_active (w))) 4604 if (expect_false (ev_is_active (w)))
4328 return; 4605 return;
4329 4606
4330 pri_adjust (EV_A_ (W)w); 4607 pri_adjust (EV_A_ (W)w);
4343 4620
4344 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
4345} 4622}
4346 4623
4347void 4624void
4348ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4625ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4349{ 4626{
4350 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
4351 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
4352 return; 4629 return;
4353 4630
4367} 4644}
4368#endif 4645#endif
4369 4646
4370#if EV_PREPARE_ENABLE 4647#if EV_PREPARE_ENABLE
4371void 4648void
4372ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4649ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4373{ 4650{
4374 if (expect_false (ev_is_active (w))) 4651 if (expect_false (ev_is_active (w)))
4375 return; 4652 return;
4376 4653
4377 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
4382 4659
4383 EV_FREQUENT_CHECK; 4660 EV_FREQUENT_CHECK;
4384} 4661}
4385 4662
4386void 4663void
4387ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4664ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4388{ 4665{
4389 clear_pending (EV_A_ (W)w); 4666 clear_pending (EV_A_ (W)w);
4390 if (expect_false (!ev_is_active (w))) 4667 if (expect_false (!ev_is_active (w)))
4391 return; 4668 return;
4392 4669
4405} 4682}
4406#endif 4683#endif
4407 4684
4408#if EV_CHECK_ENABLE 4685#if EV_CHECK_ENABLE
4409void 4686void
4410ev_check_start (EV_P_ ev_check *w) EV_THROW 4687ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4411{ 4688{
4412 if (expect_false (ev_is_active (w))) 4689 if (expect_false (ev_is_active (w)))
4413 return; 4690 return;
4414 4691
4415 EV_FREQUENT_CHECK; 4692 EV_FREQUENT_CHECK;
4420 4697
4421 EV_FREQUENT_CHECK; 4698 EV_FREQUENT_CHECK;
4422} 4699}
4423 4700
4424void 4701void
4425ev_check_stop (EV_P_ ev_check *w) EV_THROW 4702ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4426{ 4703{
4427 clear_pending (EV_A_ (W)w); 4704 clear_pending (EV_A_ (W)w);
4428 if (expect_false (!ev_is_active (w))) 4705 if (expect_false (!ev_is_active (w)))
4429 return; 4706 return;
4430 4707
4442 EV_FREQUENT_CHECK; 4719 EV_FREQUENT_CHECK;
4443} 4720}
4444#endif 4721#endif
4445 4722
4446#if EV_EMBED_ENABLE 4723#if EV_EMBED_ENABLE
4447void noinline 4724noinline
4725void
4448ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4726ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4449{ 4727{
4450 ev_run (w->other, EVRUN_NOWAIT); 4728 ev_run (w->other, EVRUN_NOWAIT);
4451} 4729}
4452 4730
4453static void 4731static void
4501 ev_idle_stop (EV_A_ idle); 4779 ev_idle_stop (EV_A_ idle);
4502} 4780}
4503#endif 4781#endif
4504 4782
4505void 4783void
4506ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4784ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4507{ 4785{
4508 if (expect_false (ev_is_active (w))) 4786 if (expect_false (ev_is_active (w)))
4509 return; 4787 return;
4510 4788
4511 { 4789 {
4532 4810
4533 EV_FREQUENT_CHECK; 4811 EV_FREQUENT_CHECK;
4534} 4812}
4535 4813
4536void 4814void
4537ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4815ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4538{ 4816{
4539 clear_pending (EV_A_ (W)w); 4817 clear_pending (EV_A_ (W)w);
4540 if (expect_false (!ev_is_active (w))) 4818 if (expect_false (!ev_is_active (w)))
4541 return; 4819 return;
4542 4820
4552} 4830}
4553#endif 4831#endif
4554 4832
4555#if EV_FORK_ENABLE 4833#if EV_FORK_ENABLE
4556void 4834void
4557ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4835ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4558{ 4836{
4559 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4560 return; 4838 return;
4561 4839
4562 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4567 4845
4568 EV_FREQUENT_CHECK; 4846 EV_FREQUENT_CHECK;
4569} 4847}
4570 4848
4571void 4849void
4572ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4850ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4573{ 4851{
4574 clear_pending (EV_A_ (W)w); 4852 clear_pending (EV_A_ (W)w);
4575 if (expect_false (!ev_is_active (w))) 4853 if (expect_false (!ev_is_active (w)))
4576 return; 4854 return;
4577 4855
4590} 4868}
4591#endif 4869#endif
4592 4870
4593#if EV_CLEANUP_ENABLE 4871#if EV_CLEANUP_ENABLE
4594void 4872void
4595ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4873ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4596{ 4874{
4597 if (expect_false (ev_is_active (w))) 4875 if (expect_false (ev_is_active (w)))
4598 return; 4876 return;
4599 4877
4600 EV_FREQUENT_CHECK; 4878 EV_FREQUENT_CHECK;
4607 ev_unref (EV_A); 4885 ev_unref (EV_A);
4608 EV_FREQUENT_CHECK; 4886 EV_FREQUENT_CHECK;
4609} 4887}
4610 4888
4611void 4889void
4612ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4890ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4613{ 4891{
4614 clear_pending (EV_A_ (W)w); 4892 clear_pending (EV_A_ (W)w);
4615 if (expect_false (!ev_is_active (w))) 4893 if (expect_false (!ev_is_active (w)))
4616 return; 4894 return;
4617 4895
4631} 4909}
4632#endif 4910#endif
4633 4911
4634#if EV_ASYNC_ENABLE 4912#if EV_ASYNC_ENABLE
4635void 4913void
4636ev_async_start (EV_P_ ev_async *w) EV_THROW 4914ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4637{ 4915{
4638 if (expect_false (ev_is_active (w))) 4916 if (expect_false (ev_is_active (w)))
4639 return; 4917 return;
4640 4918
4641 w->sent = 0; 4919 w->sent = 0;
4650 4928
4651 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4652} 4930}
4653 4931
4654void 4932void
4655ev_async_stop (EV_P_ ev_async *w) EV_THROW 4933ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4656{ 4934{
4657 clear_pending (EV_A_ (W)w); 4935 clear_pending (EV_A_ (W)w);
4658 if (expect_false (!ev_is_active (w))) 4936 if (expect_false (!ev_is_active (w)))
4659 return; 4937 return;
4660 4938
4671 4949
4672 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4673} 4951}
4674 4952
4675void 4953void
4676ev_async_send (EV_P_ ev_async *w) EV_THROW 4954ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4677{ 4955{
4678 w->sent = 1; 4956 w->sent = 1;
4679 evpipe_write (EV_A_ &async_pending); 4957 evpipe_write (EV_A_ &async_pending);
4680} 4958}
4681#endif 4959#endif
4718 4996
4719 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4997 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4720} 4998}
4721 4999
4722void 5000void
4723ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5001ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4724{ 5002{
4725 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5003 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4726 5004
4727 if (expect_false (!once)) 5005 if (expect_false (!once))
4728 { 5006 {
4749} 5027}
4750 5028
4751/*****************************************************************************/ 5029/*****************************************************************************/
4752 5030
4753#if EV_WALK_ENABLE 5031#if EV_WALK_ENABLE
4754void ecb_cold 5032ecb_cold
5033void
4755ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5034ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4756{ 5035{
4757 int i, j; 5036 int i, j;
4758 ev_watcher_list *wl, *wn; 5037 ev_watcher_list *wl, *wn;
4759 5038
4760 if (types & (EV_IO | EV_EMBED)) 5039 if (types & (EV_IO | EV_EMBED))

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